EP2187798A1 - Maschine zum waschen und/oder desinfizieren von medizinischen instrumenten - Google Patents
Maschine zum waschen und/oder desinfizieren von medizinischen instrumentenInfo
- Publication number
- EP2187798A1 EP2187798A1 EP08831612A EP08831612A EP2187798A1 EP 2187798 A1 EP2187798 A1 EP 2187798A1 EP 08831612 A EP08831612 A EP 08831612A EP 08831612 A EP08831612 A EP 08831612A EP 2187798 A1 EP2187798 A1 EP 2187798A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- machine
- washing
- test
- disinfecting
- water
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
- A61B90/70—Cleaning devices specially adapted for surgical instruments
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2/00—Disinfection or sterilisation of materials or objects, in general; Accessories therefor
- A61L2/16—Disinfection or sterilisation of materials or objects, in general; Accessories therefor using chemical substances
- A61L2/18—Liquid substances
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2/00—Disinfection or sterilisation of materials or objects, in general; Accessories therefor
- A61L2/24—Apparatus using programmed or automatic operation
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2/00—Disinfection or sterilisation of materials or objects, in general; Accessories therefor
- A61L2/26—Accessories
- A61L2/28—Devices for testing the effectiveness or completeness of sterilisation or disinfection, e.g. indicators which change colour
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
- A61B90/70—Cleaning devices specially adapted for surgical instruments
- A61B2090/702—Devices for testing the cleaning process, e.g. test soils
Definitions
- the invention relates to a machine for washing and / or disinfecting medical instruments using Nach Whywasser.
- Such machines are used in particular for cleaning endoscopes. As a rule, it is first washed and then disinfected. It is always a rinse with clear water required to eliminate, for example, residues of cleaning or disinfecting agents that could interfere with later use of the instrument in a patient.
- Disinfectants and cleaning agents may be defective e.g. due to concentration deviations or impurities.
- Rinse water so clear water, is germ susceptible. It may be insufficiently pre-sterilized or, after pre-disinfecting, e.g. be germinated by prolonged standing in air or by contact with germinated objects.
- the object of the present invention is to improve safety in a machine for washing and / or disinfecting medical instruments.
- the agents used for washing, disinfecting or rinsing are tested in the machine. This solves the problems of germs, as it is always known whether they worked with integrity resources.
- Detergents and cleaners can be e.g. for concentration, pH, etc.
- test results could result from the sample being contaminated when it is removed from the machine.
- a test device which is sealed in the machine arranged closable and there automatically, so without intervention from the outside, checks. This ensures that falsifications detected during the test come from the machine, but not from the outside or from an operator. This will exclude false-positive test results.
- a test is preferably carried out each time instruments have been treated in the machine so that proper cleanliness and sterility can be guaranteed for each instrument being treated, or it can be ensured that the dirty or germinated instruments are not used if errors are found.
- the sterility of Nach Anlagen Stamms is examined, a parameter that is crucial because all previous efforts are nullified with unsterile rinse water.
- a quick test is used according to claim 3, with the test time of the usual example, 24 hours, which would require an external laboratory, is reduced to eg 15 minutes, which can be used in the machine, for example, for draining or drying.
- FIG. 1 a machine according to the invention in a single FIG. 1 is shown in partial front view.
- Fig. 1 shows a front view of a washing machine 1 with the front surface of the housing 2, in which a flap 3 is arranged, which makes a loading space similar to that of a household dishwasher accessible.
- a flap 3 is arranged, which makes a loading space similar to that of a household dishwasher accessible.
- medical instruments of all kinds are arranged, such as endoscopes.
- the illustrated washing machine 1 serves e.g. in the usual way for cleaning and disinfecting.
- the washing machine can be designed substantially like a conventional household dishwasher, ie with a fresh water inlet and dirty water drain and with a circulation pump for operating pressure nozzles, with which the instruments are irradiated. If necessary, internal channels of the instruments can also be connected to pressure channels.
- cleaning agents are provided in tanks arranged in the housing, which are added to the water. Following the careful, for example, in several steps, cleaning is disinfected with disinfectant, which is also added to the water from storage tanks.
- a machine according to the invention can also be designed only for cleaning or only for disinfection. Regardless if only cleaned, only disinfected or whether both steps are carried out consecutively, must always be rinsed with clear water. This rinse water usually comes from the fresh water outlet. If this fresh water is germinated, the medical instruments are germinated again, even if they were properly sterilized before. Sterility in Nach Anlagenwasser must therefore be ensured.
- the rinse water is tested for sterility.
- test device 5 is arranged in the interior of the machine behind an opening 4 in the housing 2, which is preferably sealed with a lid, not shown, closed.
- the test device 5 is shown very schematically in FIG. 1 and bounded by a dashed line.
- a commercial germ rapid test is used, the reagent tube 6 used, which contain a reagent, for example in dried form. Further, a test strip 7 is used, which is dipped after reaction of the water with the reagent and then read optically and is examined for example on color changes.
- the illustrated test device 5 runs automatically, for example by means not shown control by a data processing device and has, for example, not shown controlled manipulators for handling the test tube 6 and test strip 7.
- the test device 5 is preferably started whenever a cleaning and / or disinfecting process has been completed with a rinsing process.
- the Nach Hughesworth dripping from the instruments is withdrawn from a similar to a household dishwasher collecting tray 8 with a sampling line 9 and placed in a standing in position
- a test tube 6, which was previously removed from a reagent supply 10, in the illustrated embodiment of FIG can be equipped with six test tubes. Also much higher populations are possible.
- test tube 6 After filling the test tube 6 from the sampling line 9, the test tube 6, as shown in FIG. 1, moves by one position to the left to the position B under a prepared test strip 7, which was taken from a test strip supply 11, which store a corresponding number of test strips can.
- the test strip 7 is then immersed in the filled test tube 6 and then brought one step further to the left in the position C in front of a detector 12, which can detect a color change on the test strip, for example by photometric means.
- the detector 12 delivers its measurement result in a manner not shown to a data processing device which is installed in the washing machine 1 or via data lines to the outside, for example to a hospital main computer.
- the measurement result of the detector 12 is examined and then evaluated whether the examined water is germinated or not.
- the evaluating data processing In the case of microbial contamination, the device can make a report, eg give off acoustic or optical warning signals or the like.
- the opening 4 is opened only to refill the reagent supply 10 and the test strip supply 11 and the spent reagent tubes 6 and test strips 7, which after use, e.g. can be parked in the storage areas 10 and 11, to remove. Thereafter, the opening 4 is sealed sealed, so that in the illustrated embodiment, six tests can be performed without that they can be falsified from the outside by incoming germs. With higher equipment with test agents also significantly more tests without interim maintenance are possible.
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Epidemiology (AREA)
- Surgery (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Pathology (AREA)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Apparatus For Disinfection Or Sterilisation (AREA)
- Cleaning By Liquid Or Steam (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102007044957A DE102007044957A1 (de) | 2007-09-19 | 2007-09-19 | Maschine zum Waschen und/oder Desinfizieren von medizinischen Instrumenten |
| PCT/EP2008/007711 WO2009036946A1 (de) | 2007-09-19 | 2008-09-16 | Maschine zum waschen und/oder desinfizieren von medizinischen instrumenten |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP2187798A1 true EP2187798A1 (de) | 2010-05-26 |
Family
ID=40219251
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP08831612A Withdrawn EP2187798A1 (de) | 2007-09-19 | 2008-09-16 | Maschine zum waschen und/oder desinfizieren von medizinischen instrumenten |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US20100202920A1 (de) |
| EP (1) | EP2187798A1 (de) |
| DE (1) | DE102007044957A1 (de) |
| WO (1) | WO2009036946A1 (de) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014125706A1 (ja) * | 2013-02-13 | 2014-08-21 | オリンパスメディカルシステムズ株式会社 | 内視鏡洗浄消毒装置 |
| US9651534B1 (en) | 2015-12-02 | 2017-05-16 | Sani-Hawk Optical Solutions LLC | Optical chemical test systems and methods |
| DE102023120723A1 (de) | 2023-08-03 | 2025-02-06 | Olympus Winter & Ibe Gmbh | Anordnung und Verfahren zur Messung einer Konzentration von Aufbereitungsmitteln in einer Aufbereitungsflüssigkeit |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4415823C2 (de) * | 1994-05-05 | 2001-07-19 | Aeg Hausgeraete Gmbh | Verfahren zur Spülprogramm-Steuerung in Haushalt-Geschirrspülmaschinen und Vorrichtung zur Durchführung des Verfahrens |
| US5711921A (en) * | 1996-01-02 | 1998-01-27 | Kew Import/Export Inc. | Medical cleaning and sterilizing apparatus |
| US5942438A (en) * | 1997-11-07 | 1999-08-24 | Johnson & Johnson Medical, Inc. | Chemical indicator for oxidation-type sterilization processes using bleachable dyes |
| EP1226834B1 (de) * | 1999-10-08 | 2007-01-03 | Bio Media Co., Ltd. | Formaldehydgas-sterilisator |
| EP1341434A1 (de) * | 2000-12-15 | 2003-09-10 | JohnsonDiversey, Inc. | Vorrichtung zur überwachung eines waschvorgangs |
| DE60314015T2 (de) * | 2002-12-25 | 2008-01-24 | Arcelik Anonim Sirketi | Geschirrspülmaschine und dazugehöriges verfahren zum betreiben |
| DE202004012877U1 (de) * | 2004-08-17 | 2004-12-30 | Schmid, Gerhard | Referenz-Teststreifen für Laien |
| DE102006019422A1 (de) * | 2006-04-26 | 2007-10-31 | Siemens Ag | Cartridge zur Durchführung einer Analyse, Analysegerät und Verfahren zur Durchführung einer Analyse mittels einer Cartridge |
-
2007
- 2007-09-19 DE DE102007044957A patent/DE102007044957A1/de not_active Ceased
-
2008
- 2008-09-16 WO PCT/EP2008/007711 patent/WO2009036946A1/de not_active Ceased
- 2008-09-16 EP EP08831612A patent/EP2187798A1/de not_active Withdrawn
-
2010
- 2010-03-15 US US12/723,934 patent/US20100202920A1/en not_active Abandoned
Non-Patent Citations (1)
| Title |
|---|
| See references of WO2009036946A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102007044957A1 (de) | 2009-04-02 |
| US20100202920A1 (en) | 2010-08-12 |
| WO2009036946A1 (de) | 2009-03-26 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
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| 17P | Request for examination filed |
Effective date: 20100127 |
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| AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR |
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| AX | Request for extension of the european patent |
Extension state: AL BA MK RS |
|
| RIN1 | Information on inventor provided before grant (corrected) |
Inventor name: JACQUI, HEINZ Inventor name: MERK, KARL-GUIDO Inventor name: OTTE, ANDREAS |
|
| DAX | Request for extension of the european patent (deleted) | ||
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
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| 18D | Application deemed to be withdrawn |
Effective date: 20130403 |